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klasskru [66]
2 years ago
9

Why would my teacher give me a math paper on something I didn't learn yet? Is she okay?

Mathematics
2 answers:
stepan [7]2 years ago
8 0

To see what you know, which is used to find out what you need to learn.

luda_lava [24]2 years ago
5 0

Answer:

your teacher is crazy about she think you are smart

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X+2(x+3(x+4(x+5)))=153
Allushta [10]

Answer:

x=1

Step-by-step explanation:

Here first open the inner parentheses and use the distributive property,

4(x+5)=4x+20\\\\(x+4(x+5))=(x+4x+20)=(5x+20)\\\\3(x+4(x+5))=3(5x+20)=15x+60\\\\(x+3(x+4(x+5)))=(x+15x+60)=16x+60\\\\2(x+3(x+4(x+5)))=2(16x+60)=32x+120\\\\x+2(x+3(x+4(x+5)))=x+32x+120=33x+120\\\\\\Hence\ x+2(x+3(x+4(x+5)))=x+32x+120=33x+120\\\\\Rightarrow 33x+120=153\\\\33x=153-120\\\\33x=33\\\\x=1

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Given cos 0 = 4V2/7, find sin 0.<br> sin 0 =<br> V[?]/?
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